# Python脚本的示例，接收两个数字作为参数，返回它们的和和差
import sys

if __name__ == '__main__':
    # 从命令行获取参数，转换为整数
    a = int(sys.argv[1])
    b = int(sys.argv[2])

    # 计算两个数字的和和差
    sum = a + b
    diff = a - b
    # 打印结果到标准输出
    print("The sum of {} and {} is {}".format(a, b, sum))
    print("The difference of {} and {} is {}".format(a, b, diff))
